Ground moisture tester



FIG. 1 is a top view of a ground moisture tester showing my new design;

FIG. 2 is a front view thereof, which is the same as a rear view thereof;

FIG. 3 is a bottom view thereof; and,

FIG. 4 is a right side view thereof, which is the same as a left side view thereof. 

The ornamental design for "ground moisture tester", as shown and described. 